G-WEIKE LF1390 Operating manual

G.Weike Laser
Profession Laser Manufacturer more than 15 Years.

G.Weike Laser
Profession Laser Manufacturer more than 15 Years.
Jinan G.Weike Science & Technology Co.,Ltd
Preface
Thank you for you choose our company products. We will provide you
with perfect after-sales service and solutions, please properly save the
specification and other accessories, so that you can better use.
This specification is only applicable to the standard configuration of our
products, for special customized products, please read the attached notes
carefully.
This operating manual is for the user and operator of the machine tool,
but also for the maintenance of personnel. This manual with a safetytip,
for your personal safety, must be carefully read before the use ofthe
second chapter on security.
To quickly and effectively use the product, we requires the operator to
have the following conditions:
First: the operator have to know computer expertise, could use the
relevant editing graphics software, such as: Photo-shop,Auto-cad,
Coreldraw and other graphics software.
Second: the operator has a certain knowledge of Optics and related
mechanical and electrical equipment maintenance and maintenance
knowledge.
Third: to confirm whether the device is familiar with the operation of the
equipment before the operation process and can operate according to the
equipment.

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Profession Laser Manufacturer more than 15 Years.
As the function of the product is constantly updated, the products you
receive may differ in some respects from the statements in thismanual.
This user manual can satisfy the basic demands of installation and
adjustment, more details please refer the user manuals of the
machine .Any distribution please contact with our engineers parts and
apologize for this.

G.Weike Laser
Profession Laser Manufacturer more than 15 Years.
CATALOGUE
Chapter 1 Safety Instructions and Precautions....................................................1
1.1 Overview......................................................................................................... 1
1.2 The machine safety standards..................................................................1
1.3 Safety identification...................................................................................... 1
1.4 Security management warning.................................................................2
1.5 Laser safety notice.......................................................................................2
1.7 Fire and high temperature protection.....................................................3
1.8 Electric safety................................................................................................3
Chapter 2 Introduction.................................................................................................6
2.1 Products features......................................................................................... 6
2.2 Main purpose and application scope......................................................6
2.3 Use Environmental Conditions.................................................................6
2.4 The impact on the environment and energy......................................... 7
2.5 Products Construction and working principle..................................... 7
2.5.1 Overall structure and its working principle, working
characteristic......................................................................................7
2.5.2 Main component or functional unit of the structure, function
and working principle...................................................................... 7
2.6 Function, structure and working principle, working characteristic
of the auxiliary device................................................................................. 8
2.6.1 Gas path system................................................................................8
2.6.2 Water system......................................................................................9
Chapter 3 Transportation, Shipment and Storage
................................................... 10
3.1 Machine tool transportation.................................................................... 10
3.2 Delivery check.............................................................................................11
3.2.1 Attentions of open the wooden case.........................................11
3.2.2 Check the content...........................................................................11
3.3 Installation environment requirement, method and matters need
attention........................................................................................................11
3.3.1 Ground requirements.................................................................... 12
3.3.2 Environmental requirements....................................................... 12
3.3.3 Vibration requirement....................................................................12
3.3.4 The user of the measures should be taken............................. 13
3.3.5 Package............................................................................................. 13
3.3.6 Attention............................................................................................14
Chapter 4 Installation and Connection of Laser Cutting Machine .............................15
Installation steps summarize.........................................................................15
4.1 Electrical gas connections...................................................................... 15
4.2 The connection of the water cooling machine...................................15
4.3 Debugging install of Fiber laser machine............................................ 21

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4.4 Fiber Special Cutting Head......................................................................23
4.4.1Fixing of cutting head.....................................................................23
4.4.2 Height controller connection....................................................... 23
4.4.3 Installation of ceramic part & nozzles.......................................25
4.4.4 Piping................................................................................................. 25
4.5 The connection of the gas....................................................................... 28
4.6 Air filter Installation................................................................................... 31
4.7Installation debugging methods and relevant specification........... 31
Chapter 5 Testing and operation of the machine ........................................................33
5.1Summarize and operation guide............................................................. 33
5.2 RAYCUS Optical fiber signal line connection method......................34
5.3 Adjusting laser head height and turn on the software.......................35
5.3.1 Standardization............................................................................... 35
5.3.2 Control software operation process..........................................35
5.4 Regulating gas pressure.......................................................................... 39
5.5 Adjust nozzle light..................................................................................... 39
5.6 Nozzle function and central adjustment.............................................. 41
5.6.1Nozzle function and adjustment.................................................. 41
5.6.2 Adjusting laser beam focus......................................................... 42
5.6.3 Set distance between nozzle and work piece......................... 45
5.7 Laser cutting process principle............................................................. 45
5.7.1 Laser cutting principle.................................................................. 45
5.7.2 The choice of laser cutting gas and pressure........................ 47
5.7.3 The influence of laser cutting power in cutting quality........49
5.8 Note for use main machine, chiller, laser power supply..................49
5.8.1 Electric safety precautions...........................................................49
5.8.2 Operational matters needing attention..................................... 49
5.8.3 Note on the use of temperature in spring and winter........... 51
5.9 After installation and debugging acceptance test program,
method and judgment............................................................................... 51
5.10 The machine shutdown procedure..................................................... 52
Chapter6 Maintain and trouble shooting
......................................................................54
6.1 Summarize................................................................................................... 54
6.1.1 General rule...................................................................................... 54
6.2 The peripheral equipment daily maintenance and maintenance...55
6.2.1 Waterway maintenance................................................................. 55
6.2.2 Laser Source and laser head Module maintenance.............. 58
6.3 Optical system inspection and cleaning..............................................58
6.3.1 Something should pay attention.................................................58
6.3.2 Dismantle ,installation or replacement the method of optical
lenses.................................................................................................58
6.3.3 The steps of cleaning lenses....................................................... 62
6.3.4 Storage of optical lenses.............................................................. 62
6.4 Air filter maintenance................................................................................62
6.5 Machinery Lubrication.............................................................................. 64

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6.5.1 Lubrication of gear and rack........................................................64
6.5.2 Linear slide rail lubrication.......................................................... 64
6.6 Maintenance when you stop use the machine during long-time.. 64
6.7 Storage conditions, storage period and matters needing attention
.........................................................................................................................64
6.8 Quick-wear parts list................................................................................. 64
6.9 Waste treatment..........................................................................................65
Chapter 7 Laser metal cutting machine warranty
....................................................... 66

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1
Chapter 1 Safety Instructions and Precautions
1.1 Overview
Before operate machine and do daily maintenance, operator must read this
chapter carefully, with learn safety measures and requirements of machine, and
comply with the relevant safety precautions.
1.2 The machine safety standards
Laser processing equipment and operation shall be in accordance with user
guide EN ISO 12100:2010,EN 60204-1:2006+A1:2009+AC:2010,EN ISO 11553-
1-2008 BS EN 60825+4:2006+A2:2011 laser products radiation safety,
equipment classification requirements laser equipment and facilities’ electrical
safety of those standards .
1.3 Safety identification
Warning
This manual is only suitable for G.WEIKE laser cutting machine. Beside
the regulations in this manual, other non-standard operations may
also lead to radiation injury on users.
Safety and safety protection, safety signs and instructions for use before
and during use.
Identification
Description
Warning :Laser radiation
This label aims to warn user that there is a great risk
of getting laser radiation
Warning: Electric shock
This label aims to warn user that there is a great risk
of getting electric shock.
Warning: Hands pinching
This label aims to warn user that in this place the door
may pinch your hands.

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Warning: Be care of the high temperature
The laser head will produce a high temperature in its
surface, please don’t touch the laser head when its
working or shortly after its working.
Warning:Be care of the low temperature
When using the liquid nitrogen to cutting the
materials ,the user’s hand may hurt by the lower
temperature gas tank .Please wear the gloves when
connecting the gas tank with the machine
Warning: It’s not allowed to open the door ,put your
hands body into the moving area during machine
running process
1.4 Security management warning
a). Specify the security administrator, determine scope of their duties, and
laser processing operator must get safety education and read the use
guide manual.
b). Specify laser safety management area, set up warning card in the
management area’s entrances and exits, content including: power of laser
machine, laser type, not allowed to enter, protect eyes and security manager's
name, etc.
c). Our company would undertake a training activity(face to face or training on
the Internet) to the customer. Operator of laser processing machine, must
receive special training, to reach a certain level, and on the premise of
security administrator agree, then operate the machine.
1.5 Laser safety notice
The laser source of this machine is belong to 4 class laser.The main harm
to human body are the eyes and skin, laser light to any part of the human
body can cause burns.Especially long time watching fiber laser will cause
the retina serious damage to the eyes! Avoid to put any parts of the body
in flight path of laser equipment, in order to avoid damage due to incorrect
operate.

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1.6 Eyes and skin’s protection
Caution :When the machine’s door is open in processing.All
operators must be strictly wear 1064 nm laser protective
glasses!(the model can choose SD - 4) Don't wear glasses
for operation and observation prohibited!,
1.7 Fire and high temperature protection
a).Fire protection of laser cutting processing, often use oxygen, and spark
cutting the splash, oxygen is easy to cause the danger of fire. So there should
be no inflammable and explosive articles of the workspace, and the
corresponding prevention facilities. Please close the machine’s door when
processing the materials.
b).Don’t put inflammable materials in the waste bunker.
c).Please put a fire extinguisher in the designated spot. Please refer picture 3-2.
Caution: Must wear protective gloves.
As the laser cutting process will generate a lot of heat please
wear gloves and wait 5-10 minutes after the laser machine stop
working to touch the materials and laser head.
1.8 Electric safety
Warning : Don't use wet hand contact with any electrical
safety switch in order to avoid electric shock. Machine parts
with lightning signs, says these areas have high voltage
electrical appliances or electrical components, the operator
when close to these areas or open should take care all the
more, in order to avoid electric shock. For example, the
shield, machine tool servo motor position transformer
cabinets, electrical cabinet, etc.
Warning: I n the condition of electricity charged in don’t to
touch the electrical cabinet components, such as: CNC device,
servo device, transformer, fan, .etc.

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Notice: Comprehensive careful reading machine manual
and electric schematic diagram, in order to be familiar with
the various functions and the corresponding key operation
method.
a). The operator can’t repair the electrical parts and laser parts by
himself .This machine must be repaired by professional engineers .
b). Don't open the electrical cabinet, prohibit to change the machine
parameters has been set. If you need to change, must be approved by
equipment manufacturing factory training and obtain the professional operation,
and record the changes before the values of the parameters, so that when
necessary, can restore the original state.
c). With the laser processing, general power supply voltage for the a few kv to
tens of thousands of volts, should prevent laser tube under high voltage and high
voltage generated X-ray damage danger.
1.9 Machine protective measures
1) Specified security administrator, determine the scope of their duties, and do
safety operation and safety education to the laser processing operator.
2) Specify laser safety management area, set up the warning card in the
management area entrances to , content including: the power of laser machine,
laser type, not allowed to enter, protect eyes and security manager's name, etc.
3)When not use laser processing machine, should break total power, avoiding
cause harm due to wrong operation.
4) Put smoke and dust produced in the process of machining and laser gas
emissions through the exhaust pipe to air filter, all gas cylinders should be neat
and firm.
Note: Please wear the gas mask when operating then machine
or near the processing area or operation area.
1.10 Common sense of operator
a).Operator must receive special training by our company engineer or other
professional engineers, to reach a certain level, under the premise of the
agreement of security administrator, then can operate.
b).Machine operator or person who close to the laser during use laser, should
be put on the appropriate laser protective goggles, and wearing protective
clothing, in the area of the wear protective goggles must have good indoor
illumination, in order to make sure operator operating smoothly.
c).In order to protect the operator, there must have a processing chamber or
protective screen around the set. In the processing room should have
protective laser diffusion device to protect operator; When open door of

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processing room, laser light brake should be closed.

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Chapter 2 Introduction
2.1 Products features
a). Adopt high strong overall welding fuselage, through high annealing, Large
CNC gantry milling machine precise process, have good rigidity, stability,
aseismicity,etc advantages.
b).Adopt cast aluminum beam, through advanced heat treatment process, have
high strong, light weight and good rigidity. etc advantages.
c).Imported high speed linear guide drive running, high accuracy, fast
speed, suitable for high accuracy, fast cutting.
d).Fiber laser have high optical quality,high light, high Slew Rate ,maintenance-
free, stable and reliable , low operating cost , small volume .etc.
e).The cutting head is equipped with manually adjust the focus,responsive and
accurate. Cutting head movable up-down through capacitive sensors to
control the motor drive, when cutting, laser focal length (nozzle) relative to the
cutting plate distance remains the same, ensure the cutting quality. At the
same time, according to the material and thickness of the cutting board, adjust
the location of focus, to ensure the cutting quality.
f).Pneumatic components are all adopt high quality components, advanced
design, reliable and can be equipped with three different kinds of cutting gas
simultaneously and free to choose, the pneumatic system adopts the design of
high voltage, when cutting of stainless steel plate, nitrogen pressure up to 1.5
Mpa, guarantee stability of the system, improve reliability of the cutting
machine, and ensure cutting surface quality.
2.2 Main purpose and application scope
Laser cutting is a more advanced machining method in cutting materials.
LF1390 series fiber cutting machine adopt high quality fiber laser source,
equipped with precision linear guide, and other transmission mechanism, optical
fiber cutting head, humanized operation interface. It is mainly used for metal
crafts, metal products, precision machinery, auto parts and other industries.
Note: This machine is used to cutting metal materials,it can’t be used
to cutting nonmetal materials such as plastic,acrylic,wood,etc.According
to size of laser power you choose, material cutting range is different.
2.3 Use Environmental Conditions
a) Power supply specifications: three-phase four wire system (three lines of
fire, a zero line), 50Hz 380V;
b) Power quality: Three-phase imbalance degree<2.5%,
c) Ground protection: Machine grounding, in machine tool side pile ground
d) Wires, and machine tool can be received the power supply ground wire,
grounding resistance < 4 Ω.
e) Requires good ventilation, no dust, no corrosion, no pollution’s space

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environment.
f) Install ground surrounding are not requested have big vibration.
g) Chiller is used for cooling laser, cutting head etc. specialized equipment,
and cooling circulating water requires use high quality pure water or
distilled water.
h) For prevent fire happen, working place should equipped with suitable fire
extinguisher and obligate certain fire channels.
i) The left and back of the machine tool should be away from the workshop
wall in more than 1.2 M; around the laser should be in 1.0 M away from the
walls.
j) Control unit, servo unit, display and control panel are the core parts of the
machine tool, it has certain requirements for the environment, and should
avoid machine suffer from electromagnetic interference, such as arc
welding and discharge machine, etc., in order to affect the normal work of
the machine.
2.4 The impact on the environment and energy
The laser of laser cutting machine belong to fourth class of laser products,
its injection beam and diffuse reflection light can cause damage to the human
body (especially the eyes), the operator and the present personnel should be
paid attention to protection, must be protective glasses, the model can choose
SD - 4, specification of 1064 nm.
2.5 Products Construction and working principle
2.5.1 Overall structure and its working principle, working characteristic
LF1390 series fiber cutting machine, the main components are: host
machine parts, control system, laser, water chiller, transformer, gas
equipment, etc. Host machine parts: host machine parts is the main part of
the laser cutting machine, main engine parts consistent of lathe bed, beams,
workbench, gas path and water path. Other auxiliary peripherals including
water chillers, variable pressure system.
2.5.2 Main component or functional unit of the structure, function and
working principle
a Framework
Lathe bed made from Q235 welding, welding using annealing method to
eliminate casting stress(thermal aging), and one-off and stress relieving more
thoroughly, reduce the deformation of lathe bed, ensure the accuracy of
machine tools remain unchanged for a long time
b Beam section
Using aluminum beams, through advanced heat treatment technology,
has high strength, light weight, good rigidity, etc.
c Workbench
Work units are overall welding structure, has good strength and stability.
d Electrical control part

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Lf1390 series fiber cutting machine’s electric control system is mainly
composed of servo system, control system, movable system and low voltage
electrical system.
Picture 2-1 Software operating main interface Picture2-2 servo system
Picture2-3 Calibration operation main interface Picture2-4 Cutting head
2.6 Function, structure and working principle, working
characteristic of the auxiliary device
2.6.1 Gas path system
The gas path of the optical fiber cutting machine is provided with cutting gas
(compressed air, high purity oxygen and high purity nitrogen) to the cutting
head.
Cutting gas can be divided into oxygen and nitrogen, oxygen is mainly
used for cutting ordinary carbon steel; Nitrogen mainly used for cutting

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stainless steel, alloy steel and aluminum alloy. User should choose different
cutting gas according to different materials. In the cutting gas system, due to
installed pressure sensor inside, make sure that machine stop work in time
when gas pressure is not enough, avoid the abandonment of cutting parts.
The air pressure threshold can be regulated by the upper pressure sensor
screw set, cut with compressed air and oxygen can also be adjusted by
controlled proportional valve.
2.6.2 Water system
Water chiller of fiber cutting machine’s water system adopts double
temperature water chiller, one is cooling laser and the other is cooling cutting
head.
Note: In order to guarantee normal running of the whole machine and laser,
maintain the stability of laser power and laser mode is good, equipment and
auxiliary means is extremely important. If the user is unauthorized use that not
meets requirements of the machine’s water, electricity, gas caused low laser
power, bad laser mode and other parts of damage, are not within the scope of
the warranty

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Chapter 3 Transportation, Shipment and Storage
3.1 Machine tool transportation
Spare trucks transport to the final installation site, the work must be
conducted by users in the preparation and implementation. Must be
declared machine in time before delivery to the installation place of course.
In particular, to the doorway pillar size, height can use armoured cable
bracket height, pavement roller, etc.
Must consider the scale of the machine tool drawings marked in transit!
Assist and handling tools
The user must prepare for the following items:
1. Used for machine tools, laser and additional devices of truck crane.
Suggestions for the lifting force for at least 80 t hydraulic crane; If according to
the local situation need to use a bigger boom, truck crane must have greater
gravity.
2. Forklift (2.5 t) bearing capacity.
3. The bearing capacity of bridge crane: 10 t 4.Armoured roller (1 and 2 can be
turned to a solid).
4.At least two lifting force for at least 5 t (30 mm) minimum height adjustable rear:
hydraulic jack.
Picture 3-1 Forklift drawings
Note:When the machine are transport to the installation point,the distance between

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machine landing leg basement and the ground must always less than 100mm
5.Crow bar (1 m), and extension.
1.Using the pliers to cut off the fixing band.
2.Using the crow bar to unclench the wooden box.
3.2 Delivery check
3.2.1 Attentions of open the wooden case
Please open according to prompt in outside wooden case, in order to avoid to
cause damage of the equipment in the cabinet. Please do not use sharp item
open the film package of machine and other equipment , avoid cause surface
scratches and damage to the electrical installation to protect the pipe, if
customer cause damage on its own,is not company’s responsible for
replacement.
3.2.2 Check the content
a) After opening the package, please confirm whether the products are you buy ;
b).Check the product if there is damage in transit
c).Confirm whether the parts is complete, or if there is any damage;
If there are inconsistent of model of machine, the lack of attachment or
transport damage, etc., please contact us soon.
3.3 Installation environment requirement, method and matters
need attention

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Picture 3-2 Installation location drawing
Caution:Be careful of the sharpen edges of the packages and edges of the
machine.
3.3.1 Ground requirements
1) The ground where install the equipment should be flat .The laser, bed and
the working area height difference should not exceed 10 mm. The place where
not flat must use the adjustment mat iron to leveling.
2) Lathe bed and table leg of the entire installation surface thickness of
concrete is not less than 200 mm, crushing strength shall not be less than
30N/mm2, load is greater than 30 KN/m2.
3) The entire installation surface of the fuselage must be consists of a smooth
continuous slab within the scope of every supporting points .New floor/pressure
plate must be avoided this case such as the weather is dry, the floor/pressure
appears cracks beyond the following values. Do not allow the changes caused
by machine’s tilt make the travel range of laser beam on the lens more than 0.5
mm.
3.3.2 Environmental requirements
1) Environment temperature
When operating machine, environment temperature must be between + 10
℃and + 33 ℃. In machine shutdown, the ambient temperature of installation
site shall not be reduced to + 4 ℃below.
Caution: To avoid hot deformation because of the sun shining when installed
near the window position, please fitted with shutters to avoid these situations.
Please put the gas tank in the shade place .As the high pressure of the gas
pressure gas tanks have explosive properties in higher temperature
surroundings.
2) Outside air
In order to not affect emission quality, so much, must ensure that installation
location hasn't been able to absorption wavelength of laser is 1.06 µm ray
particles or material. Such as paint sends out a steam containing solvents, or
steam from oil removal device.
3) Laser resistant device
When environment temperature is 35 ℃to 43 ℃, equipment must assemble
laser resistant device (such as air conditioning, etc.
4) Control system’s cooling
Control system’s cooling depends on the closed control system internal air
circulation within the enclosure .Thus ensure the parts maximize not
contaminated with dust and dirt .Wet room is not suitable for control system
running, especially contactor and relay contact will corrosion, resulting in control
system failure .The humidity environment must less than 70%
3.3.3 Vibration requirement
Due to a change in the load of the equipment surrounding area caused by
the external function will affect the workpiece cutting quality. For example:

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1) Forklift, land transport, etc.
2) Directly beside the equipment install or remove other machines.
3) Machines which will cause vibration in operation, such as punching
machine, bending machine, shearing machine, etc.
3.3.4 The user of the measures should be taken
1. All work must be transported in accordance with the relevant rules
2. Do not allow the machine under no the ground floor, because
otherwise the bottom of the components will be damaged! Machine tool
with foot motherboard must be less than 100 mm above the floor. In the
process of machine tool transportation to the site of installation must also
guarantee the distance from the earth
3. The foundation installation site conditions must meet the requirements of
the installation conditions. Installed in the hall on the floor for slitting,
punching, etc. must be on their own by the user according to the
foundation plan ready before the machine arrive
a. From the truck with a lifting force corresponding truck crane to
unload machine tools.
4. Laser, such as refrigeration device, suction device can use a fork lift truck
directly from the truck transport to the machine installation location
5. On the armoured roller machine tools from outdoor handling in the
workshop
6. With starting power is in the workshop bridge crane or continue on
the armoured roller machine to the installation site
7. To take advantage of the armoured roller machine put to the place of
installation and alignment position, need to use the hydraulic jack
8. Put machine in armoured roller, on the original installation location. If the
position is not enough, you must inform me in advance the user
service company. In this case can put machine tool according to the
negotiation with suppliers on the installation of a placed next to the final
installation site
9. Such as the installation smoothly, laser, refrigeration equipment and
compact dust catcher are placed in the final installation site
G.weike CNC after-sales service
1. Leveling machine: the G.weike leveling machine tool numerical control
of the company's after-sales service and technical personnel.
2. Equipment in operation: by G.weike company service technicians will be
put into operation equipment. Debugging work includes installation of
equipment parts according to the drawing, connect the power of the equipment,
to the teaching staff, and check for machine tool function.
3.3.5 Package
Cooling water machine for laser cutting machine, laser, operation box
and accessories are packed in wooden cases, such as for the other parts are
all in the outer packed in polyethylene foam and protective film packages,